Figili



(No Model.)

H. A. CHURCH.

ROLLER CHAIN GAP.

' Patented D'ec. 4, 1883.

l lllllllIlllll llll l llllll lllllll lll lllllllIllllllllllllllllflllllllll AIllllllll)lllllllllllllllllllllllllll lllllllllllllllllllllllllllll)lll3 Illlll llllll llllll llllll Illlll Illll lllllxlx-x-ll lx-x-x-x-x- Allx-x-x-x-ll y UNrEn STATES PATENT fOEEICE.

HENRY A. CHURCH, oE PROVIDENCE, RHoDE ISLAND.

ROLLER-CHAIN CAP.

SPECIFICATION forming part of" Letters Patent No. 289,618, datedDecember 4, 1883. Application tiled September 24, 183. (No model.)

To all whom, t 11m/y Con/cern:

Be it known that I, HENRY A. CHURCH, a citizen of the United Sta-tes,residing at Providence, in the county of Providence and State of RhodeIsland, have invented vcertain new and useful Improvements in Roller-Chain Caps;

and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters or figures of reference1narkedthereon,which form a part of this specification.

This my present invention relates to certain improvements in ornamentalor jewelry chains of the class generally known among manner of coveringor capping the units which form one side or edge of the chain, all aswill be more fully hereinafter set forth.

To illustrate my invention I have prepared the annexed sheet ofdrawings, in which- Figurel represents a side View of a portion ofaroller-chain, the top row of units being providedwith my improved coveror cap. Fig. 2 represents the same with the caps removed. Fig. 3 is thesame as Fig. 2, except the twisted ends of the stringing or bindingwires have not been clipped. Fig. 4 represents a vertical longitudinalsection through the. chain, showing the manner of building it up, theends of the wires, however, not being twisted or clinched. Fig. 5represents a view similar to Fig. 1, but showing two of the unitcoverings or caps in section and secured to said units. Fig. 6represents abottom view of the lower outside unit, showing the bent endof the wire staple. Fig. 7 represents abottom view of an intermediateunit. Figs. 8 and 9 represent sectional and top views, respectively, ofmy improvement. Fig. 10 represents a top view of modification of thecap, all the views being enlarged.

covering Bf for said top units, and the bentv ires or staples b. 'Ihebottom units, B, have two openings, b2, therein, into which the wirestapleb is inserted, as fully shown. (See Fig. 4.) Vhen, after passingsaid staple through the intermediate units,A, the ends are insertedthrough the top units, B2, (the latter being smaller than the otherunits,) after which the ends of the wire staples are twisted together,as shown at b, Fig. 3, and then out off flush with the upper edge of theunits B2, as shown in Fig. 2. rIhe chain is now ready to receive themetallic coverings or caps B,which are of the form shown in Figs. 8 and9, the top side or end thereof having a convex center, b4, rim b5, andparallel sides b. Said caps, after being placed over the units B?, aresecured both together by soldering, burnishing, or any other well-knownmeans, thus completing the chain. vThe caps B are made from blanks bysuitable dies, Src., in amanner common to other analogous work, adescription thereof not being deemed essential to this specification.

My object in making the center of the cover or cap convex, as at b4, is-to approximate inv form and appearance to the metallic units B of theopposite side ofthe chain,which latter have the staples b passingthrough them, the bend thereof being exposed, as shown in FigsAt and 6.

I have shown in Fig. 10, at bl, a modification of the center of the capB, which maybe made IOO staples which unite the several units together,

ing` formed to approximate the outer end of the opposite and reverseunit, substantially as shown, and for the purpose described.

2. In a roller-chain, the combination, with the intermediate units, A',end units, B B2,united by the Wire staples b, of the unit covering oroap B', having a closed end, .consisting of the convex center b4, rimb5, and parallel sides b9, substantially as shown and described.

3. The oap B, consisting ofthe parallel sides b9, rim b5, and convexcenter b, all made from a piece of sheet metal, and adapted to cover 01'cap thefupper series of units, B2, of the rollerehain A, as herein shownand described.

In testimony whereof I have affixed my sigi 5 nature in presence of tvvoWitnesses.

HENRY A. CHURCH. Witnesses:

GEO. II. REMINGTON, CHARLES HANNIGAN.

